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Secondary Cooling Circuit for Turbocharged Engines: Estimation of the Fuel Consumption Reduction in Real use According to the LCCP Method
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 01, 2009 by SAE International in United States
Annotation ability available
This paper deals with the application of a secondary cooling circuit to a turbocharged engine for a segment C car. The secondary coolant loop, working at low temperature, has been used to cool down the charge air by means of a coolant-to-air exchanger and as hot source of the HVAC circuit by means of a coolant-to-refrigerant condenser. The system is able to ensure both a constant air temperature at engine inlet, with smaller variations for different vehicle working conditions if compared to the normal production equipment, and a lower pressure at the condenser of the HVAC system, thus leading to a reduction in the fuel consumption of the vehicle.
Starting from experimental measurements on MVEG cycle, an estimation of the fuel consumption reduction of the system in real use has been done using an LCCP tool FGA did develop and it is here presented.
A further estimation of the impact of the this innovative cooling system on the fuel consumption of segment A car equipped with a turbocharged engine has been done still by means of the LCCP method.
CitationVestrelli, F., Monforte, R., and Fausto, D., "Secondary Cooling Circuit for Turbocharged Engines: Estimation of the Fuel Consumption Reduction in Real use According to the LCCP Method," SAE Technical Paper 2009-01-3066, 2009, https://doi.org/10.4271/2009-01-3066.
- European Federation for Transport and Environment “EURO 5 and 6 emissions standards for cars and vans - Position Paper” September 2006 http://www.transportenvironment.org/Downloads-req-getit-lid-440.html
- DieselNet Emission Standard - European Union -Cars and Light Trucks July 2007 http://www.dieselnet.com/standards/eu/ld.php
- Directive of the European parliament and of the council on ambient air quality and cleaner air for Europe 2005
- Thumm A. Edwards S. Pantow E. Dreisbach R. Glensivg M. “High Performance Cooling Systems as a Contribution to Meeting Future Emission Standards” International Vienna Motor Symposium April 2007
- Münz S. Römuss C. Schmidt P. Brune K.-H. Schiffer H.-P. “Turbolader fur Emissionskonzepte mit niederdruckseitiger Abgasrückfürung Grundlageneuntersuchungen und MaBnahmen Ertüchtigung des Laders” Aufladetechnische Konferenz September 2007
- Ngy-Sru AP “Innovative thermal architecture of engine cooling system: Ultimate Cooling” International Thermal Management Congress June 2006
- http://www.boschmotorsandcontrols.co.uk/elektromotoren/aggregate/wasserumwaelzpumpen/i ndex.htm
- EEC Directive 90/C81/01
- Vestrelli F. Marocco L. Buzzi L. Longo I. Biglia M. “Indirect charge air cooling: application to small diesel engine on segment B car” CTI-FORUM Thermal management in the automobile February 2008